Ball, R. (1962). Four studies in Elizabethan drama. Kansas State Teachers College.
Lua i Stíl Chicago (17ú heag.)Ball, Roma. Four Studies in Elizabethan Drama. Emporia: Kansas State Teachers College, 1962.
Lua MLA (8ú heag.)Ball, Roma. Four Studies in Elizabethan Drama. Kansas State Teachers College, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.